Question

Find the 6th term of the A.P.17, 11, 14,
...​

Answer 1

Answer:

Given,

AP... 17,14,11..-40

So, now we need the 6th term from last. SO, by reversing the AP, we get;

AP = -40,-37,-31......14,17

Now, Given;

d=3

a1=-40

n=6

Therefore a6= a+(n-1)d

=a6=−40+(6−1)3

=a6=−40+5∗3

=a6=−40+15

=a6=−25

So the 6th term is−25